Mold and die for brick-making machines



(Ne Mqdel.)

- A. ITTNER.

MOLD AND DIE FOE BRICK MAKING MACHINES.

Patented Nov. 13, 1883.

N. FEIERS. vbclwwhe mmer, Washinglnn. o. c.

UNITED STATE nnrnorr rrrnnn, on ST. LOUIS, MISSOURI.

MOLD AND DIE FOR BRICK-MAKING MACHINES.

SPECIFICATION forming part of Letters Patent No. 288,240, dated November 13, 1883. Application filed June 22, 1883. (No model.)

To all, whom it: 137/603, vconcern:

Be it known thatl, ANTHONY l'rrnnn, a citizen of the United States, residing at St. Louis, in the State of Missouri, have invented certain new and useful Improvements in Molds and Dies for Br'ick-lliachines, of which the following is a specification.

My invention relates, particularly, to that class of brickrmachines in which damp clay, or clay iuits natural condition of moisture, is pressed into molds by means of apair of plungers acting in opposite directions on the clay to make what are commonly called dry clay pressed brick, but it is applicable also to other classes of brick-machines.

The object of my invention is to make or. namental or fancy brick of any and all desired shapes in one and the same ma'chinaand to make the several parts of the machine adjustable or removable and exchangeable, and thereby to save time, labor, and expense in the construction as well as in the operation, and achieve effectiveness, durability, and strength.- My improvements are succinctly summarized in my appended claims.

In the accompanying drawings, Figure 1 is a perspective view of a rectilinear brick-mold, showing in dotted lines different-shaped molds for making correspondingly different-shaped bricks. Fig. 2 is a perspective view of part of a bed-plate, table, or mold-holder, showing my improved means for'holding the mold. Fig. 3 is a perspective view of the upper plunger, showing the manner of securing and removing the plunger plate or die. Fig. 4 isa perspective view of a detached plunger plate or die for makingabricktobeusedinoctagon-shaped corners. Fig. 5 is a cross-section of the mold-holder and upper and lower plungers, all in position as in operation. Fig. 6 is aperspecti-ve view of a plunger plate or die, a mold, and part of the mold-holder in position for making a brick for architrave work. Fig. 7 is a plan section .of the moldholder, showing the mold in position and the manner of securing the moldlining. Figs. Sand 9 are perspective views of different shaped bricks when laid, showing the class of work produced.

A. in Figs. 1, 6, and 7 indicates brick-molds for different-shaped bricks. a. isa top flange,

which forms part of the mold, and can be cast upper ends of the ribs of the mold-holder. a

or otherwiseformed on the sides, as shown in the drawings, or placed on both the sides and ends, and thus extend entirely around the top of the mold, if required. a indicates holdingscrews passing through the flange and into the is the lining of hard metal, in order to better withstand wear. This lining is made to conform to the shape of and to accurately fit the mold, and has a space .within it of the exact dimensions of the brick to be made. To firmly secure or fasten the lining in the mold, bolts a are passed from the inside face of the lining through it and the sides and ends of the mold,

and fastened on the outside of the mold by jam or locknuts at (See Figs. 1, 5, and 7.) The heads a of the bolts are countersunk flush with the inner face of the lining, and arepreferably made as hard as the lining, so as to wear evenly with it. Should the lining become worn, it can be easily taken out and re placed by a new set of lining-plates of the same or different pattern; or it can be backed up by suitable plates or packings between it and the mold as it wears away. Thus a single set of linings can be worn down until too thin for further use, while their faces can be dressed anew and their ends ground off to reduce their length for inward adjustment as often as necessary. These are important economical results secured by my invention, because usually liningplates of brick-molds, which are expensive, have to be thrown away and replaced by new ones as soon as they wear or get uneven on their faces the first time, whereas mine may be many times refaced and adjusted until they are all worn out.

The outer dimensions of the molds-win, the length and width of the ends and sides and the flange I make of uniform or standard size in all cases, so that any of my improved molds will fit into the recess B of the moldholder 0, the variation of the inner shape of the mold not changing its outer shape or dihold the lining in the mold to have clearance when the mold is in position, as shown in Figs. 5 and 7. The flange a rests on a bearing-surface on top of the mold-holder, preferably in the countersink b the screws to are driven home, and the mold is held tightly in its place. The top of the flange and the screwheads, on account of the countersink,are flush with the top of the mold-holder. (See Figs. 5 and 6.)

D, Figs. 3 and 4, is the uppera-nd-E the lower plunger. F is the upper plunger plate or die, and F is the lower. To thetop of the upper die is bolted, screwed, cast, or otherwise formed a tapered dovetail, j", and similarly on the bottom of the lower die is formed the tapered dovetail f. Vithin the faces of the plungers D E are cast or otherwise formed a corresponding tapered dovetail groove, f f,

to receive .the dovetailsff, respectively. To

hold the dies in .place, any suitable catch or lock, f, is provided, as shown in Fig. 3. The die is made of the desired shape of the brick to be made, and corresponds to the shape of the mold-lining, which it accurately fits, as seen in Figs. 5. 6, and 7. The dovetails of all upper plunger plates or dies are made of one standard size to fit the grooves of the upper plunger, and likewise the dovetails of all lower plunger plates or dies are made of one standard size to fit the grooves of the lower plunger, so that any shaped, or formed, or designed upper and lower die is adjustable to the upper and lower plunger, respectively.

As is well known in making brick by pressure, and especially when using damp clay, the clay sticks to the plungers or dies and necessitates the stopping of the machine for clean ing. To prevent this I provide a facing, g, of paper, to which damp clay will not adhere, and glue it to the dies. This I have discoveredto be the best and most economical means of keeping the faces of the dies free from clay.

I am aware that other more expensive and less effective substances have been employed ,to maskthe faces of dies in brick-machines;

but paper is a great improvement upon them.

Having fully described my invention, what I, desire to claim and secure by Letters Patent is V 1. A removable brick-mold, A, provided with the flange a and theadjustable and detachable linings a substantially as set forth;

2. In combination witha brick-mold, the adjustable and detachable linings aflprovided with the screw-bolts and nuts a and a, to accommodate inward adjustment of the linings, substantially as set forth. 1 v

3. A mold-holder, 0, provided with a suitable surface or bearing on top for the flange of a removable mold, and with a recess, B, having ribs I) projecting within it, substantially as set forth.

4. In a brickmachine, a fixed recessed n1old-holder, in combination with a detachable mold, and with plungers having plungerplates so constructed as to be readily detachable and exchangeable,whereby different patterns of fancy brick can be made by the same machine, substantially as set forth.

5. A die of a brick-machine covered with paper glued upon its face to prevent adhesion of clay, substantially as set forth.

6. In a brick-machine, a removable mold, A, having a flange, a, in combination with a mold-holder having ribs 1) and countersink b substantially as set forth.

7. The removable mold A of a brick-machine, flange-a, screws a, adjustable lininga and bolts of, secured by nuts or, in combination with a mold-holder having ribs 12 and spaces 1), as herein shown and described.

ANTHONY ITTNER.

Vitnesses OHAs F. MEIsNER, E. H. PONATH. 

